
.box-container{
	display: flex;
}

.box{
	position: relative;
	width: 500px;
	height: 1000px;
	overflow: hidden;
}

.box img{
	width: 100%;
}

.mask-box{
	position: absolute;
    top: 0;
	width: 100px;
	height: 100px;
	background: rgba(128, 128, 128, 0.3);
}

.bigBox{
	position: relative;
	overflow: hidden;
	flex-grow: 1;
	height: 100vh;
	display: none;
}

.bigBox img{
	position: absolute;
	top: 0;
	left: 0;
}
